The curvature of the endotracheal tube conforms to the shape of the airway with the head held in the neutral position, and is easier to insert then if the tube was straight. This development, largely, is an accident.
1. Methyl anthranilate, also known as MA, methyl 2-aminobenzoate, or carbomethoxyaniline, is an ester of anthranilic acid. The chemical formula for this compound is C8H9NO2. Methyl anthranilate is a clear to pale yellow liquid with a melting point of 24Â°C and a boiling point of 256Â°.n ester is the product of a reaction between an alcohol and an acid, usually an organic acid.3 Methyl anthranilate is derived from the reaction of methanol and anthranilic acid.
Image Credit: Main Image: Anthraquinone, also called anthracenedione or dioxoanthracene is an aromatic (a hydrocarbon characterized by general alternating double and single bonds between carbons) organic compound. This compound is an important member of the quinone family. As a result of NTPâs findings, the California Environmental Protection Agency included anthraquinone to its list of established carcinogens. 2  Anthraquinone is highly combustible and cannot be used near an open flame or extreme heat since the compound produces toxic fumes when burned.